SonicOS 7.1 High Availability Administration Guide
- SonicOS 7.1
- About SonicOS
- High Availability
- High Availability Status
- Configuring High Availability
- Configuring High Availability in the Cloud Platform
- Set up an Active/Standby High Availability Configuration Using Azure
- Install the Custom Template
- Enable Identity of Both Virtual Machines (HA1 and HA2)
- Role Assignment
- Check the Networking Tab
- Configuring Active NSv Firewall Using the Associated Public IP
- Configuring Standby NSv Firewall Using the Associated Public IP
- Enable the L3 Mode
- Configuring Active NSv Firewall Using the Floating Public IP
- Configuring HA to Active/Standby with L3 HA link
- Adding Additional Floating Public IP
- Set up an Active/Standby High Availability Configuration Using Azure
- Fine Tuning High Availability
- Monitoring High Availability
- Azure Use Cases
- SonicWall Support
High Availability Terminology
| Active | The operative condition of a hardware unit. The Active identifier is a logical role that can be assumed by either a Primary or Secondary hardware unit. |
| Failover | The actual process in which the Standby unit assumes the Active role following a qualified failure of the Active unit. Qualification of failure is achieved by various configurable physical and logical monitoring facilities described in Configuring High Availability. |
| HA | High Availability: non-stateful, hardware failover capability. |
| PPP | Point-to-point protocol that provides a standard method for transporting multi-protocol diagrams over point-to-point links. |
| PPPoE | A method for transmitting PPP over ethernet. |
| PPPoE HA | HA PPPoE support function without State. |
| Preempt | Applies to a post-failover condition in which the Primary unit has failed, and the Secondary unit has assumed the Active role. Enabling Preempt causes the Primary unit to seize the Active role from the Secondary after the Primary has been restored to a verified operational state. |
| Primary | The principal hardware unit itself. The Primary identifier is a manual designation and is not subject to conditional changes. Under normal operating conditions, the Primary hardware unit operates in an Active role. |
| Secondary (Backup) | The subordinate hardware unit itself. The Secondary identifier is a relational designation and is assumed by a unit when paired with a Primary unit. Under normal operating conditions, the Secondary unit operates in a Standby mode. Upon failure of the Primary unit, the Secondary unit assumes the Active role. |
| Standby (Idle) | The passive condition of a hardware unit. The Standby identifier is a logical role that can be assumed by either a Primary or Secondary hardware unit. The Standby unit assumes the Active role upon a determinable failure of the Active unit. |
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